French bridge engineers

Émile Nouguier (17 February 1840 – 23 November 1897) was a French civil engineer and architect. He is famous for co-designing the Eiffel Tower, built 1887–1889 for the 1889 Universal Exposition in Paris, France, the Garabit viaduct, the highest in the world at the time, near Ruynes-en-Margeride, Cantal, France, and the Faidherbe Bridge over the Sénégal River in Senegal.
In 1861 he attended and graduated the École Polytechnique in Paris, in 1862 he joined the École nationale supérieure des mines de Paris from which he graduated in 1865 with the title of mining construction engineer.

Albert Irénée Caquot (1 July 1881 – 28 November 1976) was a French engineer. He received the “Croix de Guerre 1914–1918 (France)” (military honor) and was Grand-croix of the Légion d’Honneur (1951). In 1962, he was awarded the Wilhelm Exner Medal. He was a member of the French Academy of Sciences from 1934 until his death in 1976.

Jean-Charles Adolphe Alphand (French pronunciation: [ʒɑ̃ ʃaʁl adɔlf alfɑ̃]; 26 October 1817 – 6 December 1891) was a French engineer of the Corps of Bridges and Roads. As a close associate of Baron Haussmann and later as Director of Public Works at Paris City Hall from 1871, he was instrumental in the large-scale renovation of Paris in the second half of the 19th century. In 1889, Alphand was elevated to the rank of Grand Cross of the Legion of Honour. In 1891, shortly before his death, he succeeded Haussmann as a member of the Académie des Beaux-Arts.